Padlock



March 6, 1934.. c, w AV 1,949,402

PADLOGK Filed Jan. 10, 1930 J1 gwwmto'n M 6mm Patented Mar. 6, 1934 UNITED STATES PATENT OFFICE Application January 10,

14 Claims.

My invention relates to padlocks of the type having a pin tumbler locking mechanism wherein the movable element of the shackle is carried by the tumbler plug or barrel and rotated therewith when the key is turned to open the shackle.

The invention aims to provide a strong, simple padlock having a combined body and shackle made in two complementary parts. A further aim is to make the major portion of the body and the major portion of the shackle in a single piece the better to withstand the abuse and shocks of service.

Other aims and advantages of the invention appear in the following description of the illustrative embodiment shown in the accompanying drawing, wherein Fig. 1 is a perspective view showing the padlock in open position;

Fig. 2 is a cross-section on the line 22 in Fig. 4, showing the parts in closed and locked position;

Fig. 3 is a similar view showing the key inserted and the barrel moved axially to free the shackle and permit it to be rotated; and

Fig. 4 is a side view of the body portion of the padlock, showing it in locked position.

Referring to'the drawing, the body is made in two parts, the larger portion 10 contains the tumblers and barrel or plug 11 to which the smaller relatively movable portion 12 is secured by a pin 13 or other suitable means. The barrel is slotted lengthwise to form a groove 14 to take the key, the shape of the groove being conformable to that of the key, as is usual in pin and tumbler locks.

The body portion 10 is also provided with three or more holes or pin chambers 15 extending transversely of the slot 14 to receive the spring pressed drivers 16. The plug or barrel is also drilled with holes normally in alinement with those in the body to receive the ends of the drivers and the pins 17, as shown in Fig. 2. Upon inserting the key 18 in the groove 14 the pins are driven outwards until they have moved the drivers to clear the barrel, as shown in Fig. 3. A further push on the key moves the barrel and portion 12 of the body axially, as shown in Fig. 3, until the flange 19 seats in the bottom of the recess 20, and disengages the studs 21, 22, from the corresponding recesses 23, 24, in the body 12 and shackle 25 integral therewith, ready to be turned to open the shackle portion 26, the drivers 16 being held depressed in this position by the wall of the chamber in which the plug 11- is mounted. Obviously other detent means than the studs 21, 22 and recesses 23, 24 may be employed and my invention is not limited to the details of these parts.

If the shackle member 26 should be sprung away from the mating shackle member 25 so as to 1930, Serial No. 419,915

disengage the stud 22 from the recess 24, the stud 21 would still remain in engagement with the recess 23 and thereby prevent turning the shackle. This arrangement relieves the drivers 16 from much of the strain that the shackle may be subjected to, and strengthens the holding power of the padlock.

For many purposes a padlock having one shackle member integral with the body of the lock is a decided advantage, and the side opening movement where little strain can come on the barrel and tumblers is also advantageous.

The axis of the chamber containing the plug or barrel 11 extends parallel, in the embodiment shown, to the plane in which the shackle members lie and transversely of the body 10 with respect to the direction of the extension of the shackle therefrom. Accordingly the relative rotation of the parts 10 and 12 about the axis of the barrel 11 is in a plane transverse to the plane of the shackle.

Such a barrel and pin tumbler lock construction permits of series of locks being arranged to be opened by the same master key and grand master key, as is well understood in the art.

The invention is not restricted to the shapes and dimensions of the parts as shown; but what it is desired to secure by Letters Patent is as follows: a

1. In a padlock, a body, a shackle member integral therewith at one side thereof, a chamber in said body disposed transversely with respect to said shackle, a barrel in said chamber, and a cooperating shackle member secured to said barrel, said body having pin tumbler mechanism for normally securing said barrel against axial movement. 7

2. In a padlock, a body, a shackle integral therewith at one side thereof, a chamber in said body disposed transversely with respect to said shackle, a barrel in said chamber, and a cooperating shackle member secured to said barrel, said body having pin tumbler mechanism for normally securing said barrel against axial movement, and cooperating interengaging members on said shackle members to prevent relative rotation thereof, said interengaging members being released by axial movement of said barrel.

3. A padlock having a divided body and a shackle portion on each body part, one of said body parts having a chamber for a barrel, a barrel in said chamber, and means for securing said other body part to said barrel, in combination with pin tumbler mechanism for securing said barrel against movement.

4. A padlock comprising a two part body, two shackle members one integral with each body part, a chamber in one body part extending transversely of the shackle members, and a barrel in said chamber, said barrel being secured to the other part of said body, pin chambers in said barrel and body part extending toward the shackle side thereof, and pins in said chambers cooperating with said barrel to lock the same in normal position until driven out by a suitable rey.

5. A padlock comprising a body having an integral shackle at one side thereof, a chamber in said body disposed transversely of the shackle, a plug axially and rotatably movably mounted in said chamber, pins for holding said plug, key means for releasing said plug from said pins, a shackle carried by said plug, and a plurality of interengaging detents on said shackles releasable by axial movement of said plug.

6. A padlock comprising an integral main body and shackle member provided with a bore in the plane of said body and shackle but transverse thereto, a plug movably mounted in said bore, an integral second body and shackle member carried by said plug and adapted for cooperation with said main body and shackle member to complete a closed shackle in one position thereof, said members being rotatable transversely of the plane of said shackle to open the same, and means for locking the two body and shackle parts in shackle closing position.

7. A padlock comprising an integral main body and shackle member provided with a bore in the plane of said body and shackle but transverse thereto, a plug axially and rotatably movable in said bore, an integral second body and shackle member carried by said plug and adapted for cooperation with said main body and shackle member to complete a closed shackle in one position thereof, means for locking said plug against movement in said bore to hold the parts in said position, and additional means to prevent relative rotation of said parts about the axis of said bore when the parts are in said position.

8. In a padlock comprising a body and a shackle, in combination, a plug rigidly carrying a portion of the padlock body, a portion of the shackle member integral with said body portion and extending transversely with respect to the axis of said plug, a second body portion rotatably mounted on said plug, a second shackle portion integral with said second body portion and extending transversely from said body portion with respect to the axis of said plug and thence in a direction substantially parallel to the axis of said plug, and adapted to cooperate with said first shackle defining a plane parallel to the axis of said plug portion to complete a closed shackle in one relative position of the parts, and means for locking the parts in said position.

9. In a padlock comprising a body and a shackle, in combination, a plug rigidly carrying a portion of the padlock body, a portion of the shackle member integral with said body portion and extending transversely with respect to the axis of said plug, a second body portion rotatably mounted on said plug, a second shackle portion integral with said second body portion and adapted to cooperate with said first shackle portion to complete a closed shackle in one relative position of the parts, means for locking the parts in said position, and additional means for preventingrelative rotation of the parts when in said position adapted to relieve said locking means of the stress incident to said prevention.

10. In a padlock comprising a body and a shackle, in combination, a plug rigidly carrying a portion of the padlock body, a portion of the shackle member integral with said body portion and extending transversely with respect to the axis of said plug, a second body portion mounted for axial and rotary movement on said plug, a second shackle portion integral with said second body portion and adapted to cooperate with said first shackle portion to complete a closed shackle in one relative axial and rotary position of the parts, and means for locking the parts in said position.

11. In a padlock comprising a body and a shackle, in combination, a plug rigidly carrying a portion of the padlock body, a portion of the shackle member integral with said body portion and extending transversely with respect to the axis of said plug, a second body portion mounted for axial and rotary movement on said plug, a second shackle portion integral with said second body portion and adapted to cooperate with said first shackle portion to complete a closed shackle in one relative axial and rotary position of the parts, means for locking the parts in said position, and additional means for preventing relative rotation of the parts when in said position adapted to relieve said locking means of the stress incident to such prevention.

12. A padlock comprising two rigid, complementary units, each comprising part of the padlock body and part of the padlock shackle, one of said units being provided with a bore and the other of said units comprising a plug member rotatably fitting said bore and also axially movable therein, said units iurther comprising means interengaging on axial movement of said units to padlocking position for preventing relative rotation of said units, and means for locking said plug in said bore to prevent axial movement thereof to unlocking position, said interengaging means serving to prevent rotational stress on said locking means.

13. A padlock having a two-part body comprising parts of unequal size, two shackle members, one integral with each body part, a chamber in one body part extending transversely of the shackle members, a barrel in said chamber, said barrel being secured to the other part of said body, and said body parts being relatively rotatable about the axis of said barrel transversely with respect to the plane of said shackle members, and pin tumbler locking mechanism in said body transversely disposed with respect to said barrel for securing the same against rotation when in locking position.

14. A padlock comprising two rigid, abutting complementary units, each comprising part of the padlock body and part of the padlock shackle, one of said units being provided with a bore and the other of said units having a shackle part and comprising a plug member rotatably fitting said bore, said units being interrelated by said bore and plug member for relative rotation about the axis thereof and transverse to the plane of said shackle, said units further comprising means inter-engaging on movement of said units to padlocking position for preventing relative rotation of said units on said axis, and means adapted to enter said bore for locking said plug therein to hold said units in padlocking position.

CHARLES W. BEAVER. 

